We used to beg borrow and steal API rounds for the 50 Cal in Vietnam. They were the neatest things to site in the big 50 Cal starlight scope with. You could put it on single shot and pick a target a few hundred yards away in the dark and BOOM... you got a burst on target that let you have a reference to adjust.. I've cut down small trees at several hundred yards sighting the damn things in. A 50 Cal inciderary makes this clock look like a toy.
